From 745a39a9e6b2901cd341af01fc9bac78a9649e23 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 18 Jul 2013 09:24:37 -0400 Subject: [PATCH] drm/radeon: wait for 3D idle before using CP DMA MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Make sure the 3D engine is idle before using CP DMA for bo copies. Signed-off-by: Alex Deucher Cc: Marek Olšák --- drivers/gpu/drm/radeon/r600.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 393880a0941..10f712e3700 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -3166,7 +3166,7 @@ int r600_copy_cpdma(struct radeon_device *rdev, size_in_bytes = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT); num_loops = DIV_ROUND_UP(size_in_bytes, 0x1fffff); - r = radeon_ring_lock(rdev, ring, num_loops * 6 + 21); + r = radeon_ring_lock(rdev, ring, num_loops * 6 + 24); if (r) { DRM_ERROR("radeon: moving bo (%d).\n", r); radeon_semaphore_free(rdev, &sem, NULL); @@ -3181,6 +3181,9 @@ int r600_copy_cpdma(struct radeon_device *rdev, radeon_semaphore_free(rdev, &sem, NULL); } + radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1)); + radeon_ring_write(ring, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2); + radeon_ring_write(ring, WAIT_3D_IDLE_bit); for (i = 0; i < num_loops; i++) { cur_size_in_bytes = size_in_bytes; if (cur_size_in_bytes > 0x1fffff) -- 2.41.0